Numerical studies on smoke control strategy on flat space

• Main Author: Seah, Raymond Jun
• Other Authors: Wan Man Pun
• Format: Final Year Project
• Language: English
• Published: Nanyang Technological University 2024
• Subjects: Engineering; Mechanical engineering
• Online Access: https://hdl.handle.net/10356/181580
• Institution: Nanyang Technological University

In recent years, the expansion of large underground spaces has become increasingly important due to factors like urbanization, population growth, and a focus on sustainability. These subterranean areas are used for a variety of purposes, including transportation systems, utility services, and commercial activities. However, maintaining fire safety in these environments poses significant challenges, such as restricted airflow, intricate designs, and the potential presence of hazardous materials, all of which can elevate the risk of fire incidents. This project focuses on designing an Engineered Smoke Control (ESC) system that meets the tenability criteria outlined in the Singapore Fire Safety Engineering Guidelines (SFSEG) 2015 by the SCDF. Effective smoke control is essential for quick and safe evacuation, which requires precise calculations of smoke movement in large underground spaces. A thorough literature review will be conducted, followed by the construction of detailed models of large flat spaces for simulation using PyroSim software. By leveraging existing knowledge of fire dynamics and safety protocols, the project will perform Computational Fluid Dynamics (CFD) simulations to assess the smoke behaviour under various conditions and scenarios. This numerical analysis will evaluate the effect of soot yield on smoke control, the effects of ventilations and the depth of solid barriers. Ultimately, to find out the best smoke control strategy for a large flat space, enhancing fire safety and protecting human lives and infrastructure as we continue to expand further underground.